Hello!
I've had basically everyone who has seen my can say we are having a baby Boy 
One comment was because the 'nub' was above a 30° angle.
I've had a look again at my scan and compared it to my DDs scan and they have the same shape head.
There are also 3 White lines on the scan picture.
I've worked our the angle and I've managed to get it under 30° its probably wrong but I'm like a dog with bone.
It's going to be a 2 months 
What do you guys think? Have I done it right? 